Sulfur functionalized biocarbon sorbents for low-concentration mercury isolation

Douglas Austin; Kousar Jahan; Xu Feng; Jared Carney; Dale K. Hensley; Jihua Chen; Brianna E. Altidor; Zhiyong Guo; Elizabeth Michaelis; Mariana K. Kebaso; Yanfeng Yue

doi:10.1039/D3DT02625F

Sulfur functionalized biocarbon sorbents for low-concentration mercury isolation†

Douglas Austin,

^a Kousar Jahan,

^a Xu Feng,

^b Jared Carney,^a Dale K. Hensley,^c Jihua Chen,^c Brianna E. Altidor,^a Zhiyong Guo,

*^d Elizabeth Michaelis,^a Mariana K. Kebaso^a and Yanfeng Yue

*^a

Author affiliations

* Corresponding authors

^a Department of Chemistry, Delaware State University, Dover, Delaware 19901, USA
E-mail: yyue@desu.edu

^b Surface Analysis Facility, University of Delaware, Newark, DE 19716, USA

^c Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA

^d College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian Province 350108, China
E-mail: guozhy@fzu.edu.cn

Abstract

Sulfur functionalized biocarbons were prepared from naturally abundant lignin alkali with sodium thiocyanate as an activation agent and a sulfur source. The resultant biocarbon sorbents showed a high mercury isolation ability from aqueous solutions, where high surface area and doping of sulfur significantly aid the uptake of mercury, i.e., 0.05 g of biocarbon sorbent removed 99% of mercury from 250 mL of simulated wastewater with an initial concentration of mercury of 10 mg L⁻¹.

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Sulfur functionalized biocarbon sorbents for low-concentration mercury isolation†

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